ELANSC310 AMD [Advanced Micro Devices], ELANSC310 Datasheet - Page 106

• Manufacturer Part Number: ELANSC310
• Description: Single-Chip, 32-Bit, PC/AT Microcontroller
• Manufacturer: AMD [Advanced Micro Devices]

Notes:
These timings are based on default settings and required initial programming. These timings may be modified via the MMS
Memory Wait State1 Register, Index 62h, and the Command Delay Register, Index 60h. (See the Élan
Programmer’s Reference Manual , order #20665.)
106
Symbol
t15a
t15b
t5a
t5b
t7a
t7b
t8a
t8b
t9a
t9b
t10
t11
t12
t13
t14
t16
t17
t18
t19
t1
t2
t3
t4
t6
MEMW command pulse width
MEMR command pulse width
MEMW active to IOCHRDY inactive
MEMR active to IOCHRDY inactive
MEMW hold from IOCHRDY active
MEMR hold from IOCHRDY active
RDDATA setup to command inactive
RDDATA hold from command inactive
DBUFOE active from command
DBUFOE hold from MEMW
DBUFOE hold from MEMR
ENDIRH, ENDIRL setup to MEMR
ENDIRH, ENDIRL hold from MEMR
LA stable to SA stable
LA stable to BALE inactive
SA stable to command active
BALE pulse width
LA hold from BALE inactive
SA hold from command inactive Write
SA hold from command inactive Read
BALE inactive to command active
WRDATA setup to command inactive
WRDATA hold from command inactive
SA stable to BALE inactive
Table 55. ISA Memory Read/Write 8-Bit Cycle (See Figure 44)
Parameter Description
Élan™SC310 Microcontroller Data Sheet
P R E L I M I N A R Y
Notes
Min
160
500
550
300
170
60
35
40
50
40
50
50
–2
–4
15
45
0
0
Preliminary
TM
Max
140
340
340
110
160
SC310 Microcontroller
5
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns